[Video] The March of the Great White Bear

These videos are not looped: they are based on the "behavioural stereotypy (repetitive, seemingly functionless behaviours)" of polar bears in captivity.
Ethological studies have shown that stereotypical behaviours stem from limited captive environments that do not satisfy the animals' normal behavioural needs. It is also seen as a sign of psychological distress in animals, and therefore is a warning of poor welfare .

In the web version of "The March of the Great White Bear", the footages were recorded in four different city zoos in Europe: Gelsenkirchen (Deutschland), Rhenen (Netherlands), Praha (Czech Republic), and Brno (Czech Republic). The China sites includes Xi'an, Wuhan, Qingdao and Beijing.